934 resultados para Word wide web (Sistemas de recuperação da informação)


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Hepatitis C is a disease that affects approximately four million Brazilians. It is a rare disease with symptoms but with a treatment that involves marked secondary effects. The silence of their symptoms, however, socially projected, build the social imaginary figures that send feelings and prejudices, being born therefore the social stigma. This situation fundamentally affects the welfare of their subjects. In this aspect, this research traces a parallel between the situation experienced by patients with hepatitis C and the use for these individuals from the World Wide Web and its interactive tools on overcoming limits the disease and in the reconstruction of their social identities.

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The technological advances of recent decades combined with digital inc1usion in Brazil sparked the country's population to the constant use of computers to perform tasks in many different natures. Whether it's for communication, entertainment, work or school, computers are tools with increasing numbers in Brazilian homes. Along with this evolution the Brazilian Physics teaching should be aware of the use of teaching tools that relate directly to the computer to student learning. Highlighting in this work we have scanned the contents of the Wikipedia community, a wide variety of educational videos placed on YouTube, educational games that try to teach the player in a fun way and a variety educational softwares placed on the World Wide Web. It is with special attention to educational softwares as tools for teaching physics, which describe some strategies for use of these software, combined with the textbooks, to illustrate some ways to introduce the use of educational softwares directly in the classroom

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This study aimed to develop a computer program which systematizes the structural shielding design calculation in diagnostic radiology facilities. For this purpose methodology of the National Council of Radiation Protection and Measurements (NCRP 147[5]) was used. By comparative statistics studies, it was verified if reference parameters values suggested by the US publication correspond to the average national values. The World Wide Web was chosen because of its characteristics as a powerful mean of communication, especially in terms of the wide variety of useful resources and easy access. To compare the reference values of some parameters proposed by NCRP 147 to Brazilian average, studies about the normalized workload per patient, performance of X-ray tube and primary air kerma, unshielded, at one meter from the focal point of the X-ray tube were made. Through this research, relative differences were found. In workload values this differences reached up to 50% in mammography compared to those presented by the NCRP 147; in X-ray tube performance the percentage differences reached 69% in dental radiology, and air kerma results amounted 31% in fluoroscopy. This demonstrates the importance of validation of international protocols to local realities

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Ciência da Computação - IBILCE

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Ciência da Informação - FFC

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Recently, there has been growing interest in developing optical fiber networks to support the increasing bandwidth demands of multimedia applications, such as video conferencing and World Wide Web browsing. One technique for accessing the huge bandwidth available in an optical fiber is wavelength-division multiplexing (WDM). Under WDM, the optical fiber bandwidth is divided into a number of nonoverlapping wavelength bands, each of which may be accessed at peak electronic rates by an end user. By utilizing WDM in optical networks, we can achieve link capacities on the order of 50 THz. The success of WDM networks depends heavily on the available optical device technology. This paper is intended as a tutorial on some of the optical device issues in WDM networks. It discusses the basic principles of optical transmission in fiber and reviews the current state of the art in optical device technology. It introduces some of the basic components in WDM networks, discusses various implementations of these components, and provides insights into their capabilities and limitations. Then, this paper demonstrates how various optical components can be incorporated into WDM optical networks for both local and wide-area applications. Last, the paper provides a brief review of experimental WDM networks that have been implemented.

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Computer and telecommunication networks are changing the world dramatically and will continue to do so in the foreseeable future. The Internet, primarily based on packet switches, provides very flexible data services such as e-mail and access to the World Wide Web. The Internet is a variable-delay, variable- bandwidth network that provides no guarantee on quality of service (QoS) in its initial phase. New services are being added to the pure data delivery framework of yesterday. Such high demands on capacity could lead to a “bandwidth crunch” at the core wide-area network, resulting in degradation of service quality. Fortunately, technological innovations have emerged which can provide relief to the end user to overcome the Internet’s well-known delay and bandwidth limitations. At the physical layer, a major overhaul of existing networks has been envisaged from electronic media (e.g., twisted pair and cable) to optical fibers - in wide-area, metropolitan-area, and even local-area settings. In order to exploit the immense bandwidth potential of optical fiber, interesting multiplexing techniques have been developed over the years.

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Park Service Thwarts Cat Allies, by Marilyn Davis, Native Species Network, Bodega Bay, California Jim Miller Elected VP of Wildlife Society ADC Aerial Hunting Accident Kills 2 Obituary: Carl R. Gustavson HSUS Former Employee File Lawsuits Rats Shut Down Internet at Stanford Call for Papers: A Symposium on Mammal Trapping August 1997 in Edmonton, Alberta Fur in Cyberspace: The Fur Institute of Canada announces it has established a site on the World Wide Web, at the following address: http://www.fur.ca. Book Review: Beaver and Otter: Open Water Techniques, by Charles Dobbins 1992. Beaver Pond Publishing and Printing, P.O. Box 224, Greenville, Pennsyulvania, 16125. 114 pages. American Association of Wildlife Veterinarians: Resolution on Management of Feral Cats Use of Zinc Phosphide for Marmot Control, by Mark Collinge, NADCA Northern Rockies Region Director, USDA-APHIS-ADC Cat Colony Ordinance Adopted by Santa Clara County, California

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)